Question

Does copper react with copper sulphate?
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Answer 1

Answer:

Yes

Because copper sulphate is made through copper

Answer 2

ANSWER :-

No. There are other cases where a zero-valent metal may react with a salt of the same metal - for example, copper will reduce cupric chloride in solution. But in the case of copper sulfate, this doesn’t happen.

It’s possible that at higher temperatures (e.g. using a copper sulfate melt at 200C), you would get a reaction along the lines of

Cu + CuSO4 → 2CuO + SO2

However, I find no reference for this and the reaction is not thermodynamically favorable; if it happens, it would be driven by the fact that the SO2 gases out of solution, driving the equilibrium to the right.

At 650C you would get the net reaction above, but in that case it’s not so much copper and copper sulfate reacting; rather, pyrolysis of the CuSO4 proceeds (CuSO4 → SO3 + CuO) and the sulfur trioxide reacts separately with the copper.

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